Orson d



(No Model.)

0. D. WHITOOMB.

TRESTLE.

Pate ted M 1 IWTOR ttorneyf WITNESSES N. PETERS, Photo-LithographerWnihinglon. uc

UNITED STATES PATENT ()rEIcE.

ORSOR D. VHITOOMB, OF RODMAN, FEW YORK.

TRESTLE.

SPECIPICATIONLonning part of Letters Patent No. 342,153, dated May 18,1886.

Application filed February 17, 1886. Serial No. 192,264. (X0 model.)

To aZZ whom it may concern.-

Be it known that I, ORsoN D. WHITooMB, a citizen of the United States,and a resident of Rodman, in the county of Jefferson and State of NewYork, have invented certain new and useful Improvements in Trestles; andI do hereby declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, which form a part of this specification,and in Which- Figure l is a perspective view of my improved trestle,showing it applied as a support for a hammock and an awning. Figs. 2 and3 are side views of the end of the trestle, seen from opposite sides.Fig. 4 is a sectional end view taken on a plane passing through the boltof one set of legs and the bolt of one of the awning-supports.

Similar letters of reference indicate corresponding parts in all thefigures.

My invention has relation to trestles having adjustable legs, so thatthe legs or supports may be secured at any inclination, enabling the topbar of the trestle to be placed perfectly level without regard to thelevel of theground upon which it is placed; and it consists in theimproved construction and combination of parts of such a trestle, whichis preferably intended as a support for hammocks or similar swinging orsuspended articles, and which is provided with a support for an awning,as hereinafter more fully described and claimed.

In the accompanying drawings, the letter A indicates the top bar, to thesides of which are secured the upper reduced portions, B, of twocastings or flat bars, 0 0, one near each end of the bar, bearing withtheir upwardlyfacing shoulders D against the lower edges of the bar. Thelower ends of these castings are formed with perforations E, and oneside of the casting is provided with an outwardlyprojecting flange, F,surrounding the perforation, while the other side is formed with anannular recess, G, surroundingthe edge of the perforation. An annularflange, H, around the edge of a perforation, l, in a disk, J, fits intothis recess, and the disk is formed with another flange, K, upon itsother face, and one portion of the edge of the disk is formed into ashank, L, to which a leg, M, is secured with its upper end. Two oblongblocks, N N, having central perforations, O O, fit with their innerfaces, which are formed with annular recesses P, upon the flanged facesof the disk and of the lower portion of the casting, and the outer sidesof these blocks are formed with segmental grooves Q, having fiangesRattheir sides, in which grooves the segmental upper castings or heads, S,fit and turn, the said heads having longitudinal slots T, and beingsecured to the upper ends of two legs, U U. A bolt, V, passes throughthe perforations and through the slots, and bears with its flat sidesagainst the flat sides of the perforations in the castings and in theslots, being thus prevented from turning within the same, and the headWV of the bolt is rectangular and fits between flanges X X at the sidesof the slots in the heads of the legs, the said flanges be ing a shortdistance from the edges of the slots, so that the said flanges formsteps at the edges of the slots. A rectangular washer, Y, fits upon theouter screw-threaded end, Z, of the bolt, and fits with its reducedinner portion between'the flanges of the slot in the head at that side,and a handled nut, A, fits upon the outer threaded end of the bolt, andserves to bear against the washer and to draw the washer toward the headof the bolt, clamping the heads of the legs, the blocks, the disk of theleg, and the perforated portion of the casting together, so that thelegs will remain in their adjusted positions. A bolt, B, passes througha transverse perforation, G, at each end of the top bar, passing throughthe reduced upper portion of the casting, and the fiat portion of thisbolt passes through a slotted head, D, of a short arm, E, and bears withits rectangular head between flanges F at the sides of the slot, and theslotted head fits in a segmental groove,G,in the outer side of a block,

H, which is drawn by the bolt to the side of the top bar, the bolthaving a handled nut, I, at its outer screw-threaded end, which nutbears against the reduced portion of the casting. The upper end of theshort arm secured to the slotted head is reduced to form anoutwardly-facing concave shoulder, J, and two arms, K K, are pivotedupon abolt,L,p-assing ICO through their inner ends and through the re- Ihand-nut at its outer threaded end, as and for duced end of the arm,allowing the said arms to be folded together or to be spread out. Itwill now be seen that by loosening the hand-nuts on the bolts Vthe legswill be loosened,so that they may be turned and spread to form alevelsupport for the top bar, each pair of side legs turning together onaccount of the bolt being flat and the perforationsintheblocksbeingflat,and after the legs have been tilted to bring the top barto its desired level the hand-nut may be tightened and the legs thussecured. The arms at the ends of the top bar may be turned up andsecured by their bolts and hand-nuts, and the arms at the ends of theshort arms may be spread out to both sides, so that an awning may bespread and supported by the arms,thus allowing the person resting in thehammock to be protected from the sun and the weather, the hammock beingsuspended from suitable hooks or eyes, M M, at the ends of the underside or lower edge of the top bar.

The trestle may be used as a support for a swing or gymnastic apparatus,if the legs are made longer in comparison with the top bar, or thetrestle without the awning-supporting arms may be used for the purposeof supporting scaffolding, tables, benches, or any other purposes forwhich trestles are used, the adjustrnent of the legs allowing the legsto be placed at such angles that the top bar will remainlevel,regardless ofthe slope ofthe ground upon which the legs areplaced.

Having thus described my invention, I claim and desire to secure byLetters Patent of the United States- 1. In a trestle, the combination ofa top bar, a casting secured to the top bar, and havinga perforation inits lower portion, said lower portion having a flange, and an annularrecess surrounding the perforation at the sides of the casting, a leghaving a disk at its upper end fitting with an annular flange in therecess of the casting, and having a registering perforation, two blockshaving perforations, andhaving annular recesses surrounding them,fitting with their in ner faces against the flanged faces of the castingand of the disk of the leg, and having segmental grooves in their outerfaces, legs having rounded heads fitting in the grooves, and havinglongitudinal slots formed with side flanges upon the outer faces, and aflat bolt passing through the perforations and slots, and having arectangular head fitting between the flanges of one leg-head and arectangular washer fitting between the flanges of the other leg-head andprovided with'a the. purpose shown and set forth.

2. In a trestle, the combination of a top bar having adjustablesupporting legs, blocks having segmental grooves in their faces, armshaving curved and longitudinally slotted heads fitting in the grooves,spreaderarms pivoted upon the outer ends of the short arms, and boltshaving flat ortions passing through the slots and the bl ks and passingthrough the ends of the top bar and provided with a tightening-nut attheir threaded ends, as and for the purpose shown and set forth.

3. In a trestle, the combination of the top bar provided with thecastings at the ends, centrallegs having disks at the upper ends fitting against the sides of the castings, adjusting-blocks having convexouter faces, side legs having concave upper ends fitting against theblocks, and bolts passing through the castings and through the legs andblocks and provided with adjusting-nuts, as and for the purpose shownand set forth.

4. In a trestle, the combination of a top bar havingdownwardly-projecting perforated castings at its ends, central legshaving fiat heads bearing against one side of each casting,adjusting-blocks having convex faces, and having segmental grooves inthe said faces, side legs having concave upper ends formed withlongitudinal slots fitting in the grooves, and bindingscrews passingthrough perforations in the castings and blocks and legs, as and for thepurpose shown and set forth.

5. In a trestle, the combination of a top bar havingdownwardly-projecting perforated castings at its ends, central legshaving disks at their upper ends provided with central perforationssurrounded by flanges bearing against one side of each casting,adjusting blocks having outer convex faces formed with segmentalgrooves, side legs having curved heads fitting in the said grooves andformed with longitudinal slots having flanges near their edges, andbinding-bolts having flat heads, and washers sliding between the flangesof the slotted heads of the side legs and provided with hand-nuts, asand for the purpose shown and set forth.

In testimony that- I claim the foregoing as my own I have hereuntoaffixed my signature in presence of two witnesses.

ORSON D. \VHITCOMB.

Witnesses:

Tnos. M. BRO\VN, CHARLIE P. OATMAN.

